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Original Message
Checking the stroke
By Bob - 01/13/2002 3:46:24 PM; IP 65.80.201.7
Here's the easy way to check the stroke without removing the head. Get a straight 12 inch piece of coat hanger wire. Get a magic marker. Remove the number 1 and number 4 spark plugs. Turn the engine over until the timing mark is at TDC. Put the wire in the number 1 spark plug hole with wire resting on the top of the piston. Make a mark on the wire even with the lip on the valve cover. Now move the wire over to the number 4 cylinder and mark the wire again. Measure the distance between the two marks.

For those that don't know: 3.98 is the stroke for the 410 and 428 engines; 3.78 is the stroke for the 390, 406 and 427 engines and 3.5 is the stroke for the 352 and 360 engines.

Thanks to John Wilkerson for giving me the idea for this.

Cross bolts are seen as a row of bolts on each side of the outside bottom edge of the block. There is no need to remove the pan to see them.
This thread, so far...
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Collapse <a href=../ForumFE/reply.aspx?ID=10687&Reply=10687><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10687" onclick="return false;">FE Block ID??</a>&nbsp;-- <font color=#0000ff>Johnj, <i>01/13/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10687', contentMargin: 60, icon: $('anchor10687') }); </script>  FE Block ID?? -- Johnj, 01/13/2002
Collapse <a href=../ForumFE/reply.aspx?ID=10689&Reply=10687><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10689" onclick="return false;">99.9% certainty its a plain 390 block, but is it cross-bolted? [n/m]</a>&nbsp;-- <font color=#0000ff>Mr F, <i>01/13/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10689', contentMargin: 60, icon: $('anchor10689') }); </script>  99.9% certainty its a plain 390 block, but is it cross-bolted? [n/m] -- Mr F, 01/13/2002
Collapse <a href=../ForumFE/reply.aspx?ID=10693&Reply=10687><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10693" onclick="return false;">RE: 99.9% certainty its a plain 390 block... [n/m]</a>&nbsp;-- <font color=#0000ff>Johnj, <i>01/13/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10693', contentMargin: 60, icon: $('anchor10693') }); </script>  RE: 99.9% certainty its a plain 390 block... [n/m] -- Johnj, 01/13/2002
Collapse <a href=../ForumFE/reply.aspx?ID=10695&Reply=10687><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10695" onclick="return false;">RE: 99.9% certainty its a plain 390 block... [n/m]</a>&nbsp;-- <font color=#0000ff>Johnj, <i>01/13/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10695', contentMargin: 60, icon: $('anchor10695') }); </script>  RE: 99.9% certainty its a plain 390 block... [n/m] -- Johnj, 01/13/2002
Collapse <b>Checking the stroke</b>&nbsp;-- <font color=#0000ff>Bob, <i>01/13/2002</i></font>Checking the stroke -- Bob, 01/13/2002
Collapse <a href=../ForumFE/reply.aspx?ID=10703&Reply=10687><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10703" onclick="return false;">It's either a 352 or 390 block.</a>&nbsp;-- <font color=#0000ff>Dave Shoe, <i>01/13/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10703', contentMargin: 60, icon: $('anchor10703') }); </script>  It's either a 352 or 390 block. -- Dave Shoe, 01/13/2002
 RE: Thanks to everyone in ID'ing eng. as a 390 -- Johnj, 01/13/2002
 RE: It's either a 352 or 390 block. -- Bob, 01/14/2002
Collapse <a href=../ForumFE/reply.aspx?ID=10786&Reply=10687><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10786" onclick="return false;">What about the dish and eyebrows?</a>&nbsp;-- <font color=#0000ff>Dave Shoe, <i>01/16/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10786', contentMargin: 60, icon: $('anchor10786') }); </script>  What about the dish and eyebrows? -- Dave Shoe, 01/16/2002
Collapse <a href=../ForumFE/reply.aspx?ID=10796&Reply=10687><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10796" onclick="return false;">RE: What about the dish and eyebrows?</a>&nbsp;-- <font color=#0000ff>Bob, <i>01/16/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10796', contentMargin: 60, icon: $('anchor10796') }); </script>  RE: What about the dish and eyebrows? -- Bob, 01/16/2002
Collapse <a href=../ForumFE/reply.aspx?ID=10809&Reply=10687><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor10809" onclick="return false;">RE: What about the dish and eyebrows?</a>&nbsp;-- <font color=#0000ff>Dave Shoe, <i>01/16/2002</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=10809', contentMargin: 60, icon: $('anchor10809') }); </script>  RE: What about the dish and eyebrows? -- Dave Shoe, 01/16/2002
 RE: What about the dish and eyebrows? -- Bob, 01/16/2002
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